Sveti Ilija Tunnel
The 233rd longest tunnel in the world
The Sveti Ilija Tunnel (Croatian: Tunel Sveti Ilija, lit. 'Saint Elijah Tunnel') is a road tunnel through Biokovo mountain that connects the coastal and continental parts of the Split-Dalmatia County.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).